Class RFpointsDataFrame

Description

Class for attributes in one-dimensional space that are not on a grid.

Creating Objects

Objects can be created by using the functions RFpointsDataFrame or conventional2RFspDataFrame or by calls of the form as(x, "RFpointsDataFrame"), where x is of class RFpointsDataFrame.

Slots

data:

object of class data.frame, containing attribute data

coords:

n-times-1 matrix of coordinates (each row is a point)

.RFparams:

list of 2; .RFparams$n is the number of repetitions of the random field contained in the data slot, .RFparams$vdim gives the dimension of the values of the random field, equals 1 in most cases

Methods

plot

signature(obj = "RFpointsDataFrame"): generates nice plots of the random field; if space-time-dim2, a two-dimensional subspace can be selected using the argument MARGIN; to get different slices in a third direction, the argument MARGIN.slices can be used; for more details see plot-method or type method?plot("RFpointsDataFrame")

show

signature(x = "RFpointsDataFrame"): uses the show-method for class SpatialPointsDataFrame.

print

signature(x = "RFpointsDataFrame"): identical to show-method

RFspDataFrame2conventional

signature(obj = "RFpointsDataFrame"): conversion to a list of non-sp-package based objects; the data-slot is converted to an array of dimension [1*(vdim>1) + space-time-dimension + 1*(n>1)]

coordinates

signature(x = "RFpointsDataFrame"): returns the coordinates

[

signature(x = "RFpointsDataFrame"): selects columns of data-slot; returns an object of class RFpointsDataFrame.

[<-

signature(x = "RFpointsDataFrame"): replaces columns of data-slot; returns an object of class RFpointsDataFrame.

as

signature(x = "RFpointsDataFrame"): converts into other formats, only implemented for target class RFgridDataFrame

cbind

signature(...): if arguments have identical topology, combine their attribute values

range

signature(x = "RFpointsDataFrame"): returns the range

hist

signature(x = "RFpointsDataFrame"): plots histogram

as.matrix

signature(x = "RFpointsDataFrame"): converts data-slot to matrix

as.array

signature(x = "RFpointsDataFrame"): converts data-slot to array

as.vector

signature(x = "RFpointsDataFrame"): converts data-slot to vector

as.data.frame

signature(x = "RFpointsDataFrame"): converts data-slot and coordinates to a data.frame

Details

Methods summary and dimensions are defined for the “parent”-class RFsp.

Author(s)

Alexander Malinowski Alexander.Malinowski@web.de

See Also

RFspatialPointsDataFrame, which is for point locations in higher dimensional spaces, RFpointsDataFrame-class which is for one-dimensional locations on a grid, RFsp

Examples

RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set
##                   RFoptions(seed=NA) to make them all random again

x <- runif(100)
f <- RFsimulate(model=RMexp(), x=x, n=3)

str(f)
str(RFspDataFrame2conventional(f))
coordinates(f)[1:25,]
str(f[2]) ## selects second column of data-slot
all.equal(f, cbind(f,f)[1:3]) ## TRUE

plot(f, nmax=2)